s6.sh

#!/bin/bash
# https://github.com/just-containers/s6-overlay

S6_VERSION="v2.1.0.2"
ARCH=$(uname -m)

if [[ "${ARCH}" == "armv7l" ]]; then
    wget -q -nv -O /tmp/s6.tar.gz "https://github.com/just-containers/s6-overlay/releases/download/${S6_VERSION}/s6-overlay-armhf.tar.gz"
elif [[ "${ARCH}" == "aarch64" ]]; then
    wget -q -nv -O /tmp/s6.tar.gz "https://github.com/just-containers/s6-overlay/releases/download/${S6_VERSION}/s6-overlay-aarch64.tar.gz"
elif [[ "${ARCH}" == "x86_64" ]]; then
    wget -q -nv -O /tmp/s6.tar.gz "https://github.com/just-containers/s6-overlay/releases/download/${S6_VERSION}/s6-overlay-amd64.tar.gz"
else
    echo "NOT SUPPORTED ARCH: ${ARCH}"
    exit 1
fi

tar xzf /tmp/s6.tar.gz -C /
rm /tmp/s6.tar.gz